Nirav Tolia - the CEO of Nextdoor at the headquarters downtown San Francisco, California. Nextdoor is a private social network for neighborhoods. The company launched nationally in October 2011 and has 100 employees as of June 2014.

(06-13) 12:39 PDT BRISBANE -- The chief executive of Nextdoor, a social network designed to help neighbors connect with each other and police, pleaded no contest to misdemeanor hit-and-run for fleeing a crash on Highway 101 in Brisbane that left a woman injured, attorneys in the case said Friday.

Nirav Tolia, 42, of San Francisco was sentenced Thursday by Judge Jonathan Karesh of San Mateo County Superior Court to 30 days in jail, which he can serve in a weekend sheriff's work detail program. The judge also gave Tolia, who was initially charged with felony hit-and-run, two years of probation.

"I am relieved that after further examination of the facts, the DA reduced the charge to a misdemeanor and that Thursday's hearing brought the matter to a close," Tolia said in a statement.

The case was unusual because Tolia's BMW X5 never hit the Honda de Sol driven by Patrice Motley of San Francisco during the incident Aug. 4 on northbound Highway 101.

Instead, prosecutors said, Tolia moved his sport utility vehicle into Motley's lane, narrowly missing her but causing her to lose control, spin 180 degrees and hit the concrete median. She suffered fractures in her left hand and neck and back injuries.

Although Tolia acknowledged that his maneuver caused her to crash, "It was a mundane traffic incident, and Mr. Tolia acknowledged his participation in it from day one," said his attorney, Dan Barton. "This was a hit-and-run with no hit. Mr. Tolia was driving down the road and had what he perceived as a close call, and the other vehicle lost control."

Tolia and his wife, who was riding in the vehicle with him, saw the crash but never stopped, according to a civil complaint filed on Motley's behalf that is still pending. He "gambled" that no one took down his license plate number, said Motley's attorney, Joseph Brent.

Barton said his client didn't stop because he wasn't in position to help and believed other motorists were notifying authorities about the crash. It would have been different "if this was out on a rural road, and the car was in a ditch," the attorney said.

Barton called the incident an "unfortunate but ordinary driving mistake that has been blown out of proportion to shake money out of him."

Nextdoor, based in San Francisco, connects people online based on where they live. In a statement Friday, the company said it "fully supports Nirav and is continuing to stay focused on the needs of our members."